untainted vs unsullied

untainted and unsullied both are adjectives.

Word	Noun	Adjective	Verb	Adverb
untainted	No	Yes	No	No
unsullied	No	Yes	No	No

As adjectives, untainted and unsullied are synonyms defined as:

Other synonyms of untainted include stainless, unstained, untarnished.

untainted (adjective)	unsullied (adjective)
(of reputation) free from blemishes	spotlessly clean and fresh
	(of reputation) free from blemishes